Concrete bollard mould

[nun_hunter]

I'm sure I've seen these made in two halves from fibreglass to make your own concrete bollards as to buy they're about £130 per bollard. However I can't seem to find the moulds for sale anywhere online. Does anyone have any links or companies they know of who'd be able to sell one?

 

[Kalahari]

Wouldn't a bit of drainpipe filled with concrete do the job? Don't know if the idea is any help.

David.

 

[Mike L]

Just make some pointed square ones, plywood for the mould, line with mould oil and job done, maybe a bit of lattice rebar if so inclined.

 

[BRYAN]

Road cones or clowns hats(when Corbyn and bojo) have finished with them.

 

[kes]

Shape is the issue - what do you want ?
I'd make one out of wooden slats a bit conical Narrower at top than bottom. If its to be 'rough' use pallet slats sawn in half and nailed to a shaped bracket, make 2 halves and strap/tie together when filling with concrete. You could use hardboard /visqueen on the inside to give it a smooth finish - obviously you can make more than 1. Each time you use it apply 'mould' oil to allow easy removal of the cured concrete from the 'mould'. No need to use thin plastic if you use visqueen, as an alternative. Put a square wooden box nailed to the top for a different shape. Then you can paint it or use it plain. Fill with coloured concrete (powders available) for a different colour and leave for 7 days before removing mould.
You could use a piece of 6"*6"/8"*8" oak squared/ chamfered on edges or turned on a lathe and shaped - plently of designs on google. There are quite a number of designs you could make/materials you could use..

 

[AN DU RU FOX]

concrete ball – academyforyou.co

theres also geometrics but its usa they make them out of foam so if you handy ,a nice little project. theres also coloured pvc plastic sleeves that you can slide over whatever steel bar/ wood post etc different thicknesses but i think thats in usa as well.

 

[nun_hunter]

It's to go on a village green and there are about 30 in total in various states of repair. They want them to look decent but don't have the money to replace them at £130 each so a mould and make them as and when they need is the preferred option. Wooden moulds may be an option but I have a sneaking suspicion that the councillors and residents are after one looking all nice ie round and smooth with a domed top.

 

[Apthorpe]

They could buy new oak sleepers, cut each into four pieces and have hardwood bollards at a fraction of the cost, probably less hassle, and greener.

 

[Sampo]

Road cones or clowns hats(when Corbyn and bojo) have finished with them.

when they have finished with them? It might be a decade long wait.

 

[LuckyEddie]

It's to go on a village green and there are about 30 in total in various states of repair. They want them to look decent but don't have the money to replace them at £130 each so a mould and make them as and when they need is the preferred option. Wooden moulds may be an option but I have a sneaking suspicion that the councillors and residents are after one looking all nice ie round and smooth with a domed top.

Well, unfortunately, you pay for what you get.
They want all singing dancing shiny bollards then they need to fork out the money.
Also there is the slight issue of liability! If people expect the bollards to have a certain amount of give and they crack their bumpers on solid concrete then there may be a claim.
I only raise this as we had a similar scenario at work. I wanted concrete bollards and was overruled by the legal team.

 

[nun_hunter]

They currently have rectangular concrete ones but they're very old and falling apart, I imagine most will need replacing within the next few years. I have said that wooden ones (I like the sleeper idea) are probably the cheapest for now but if a mould was obtainable then that would be cheapest in the long run and satisfy their want.

 

[enfieldspares]

Tall thin plastic bucket. The sort that flower shops put long stemmed carnations in.

 

[John_R]

There's a train station near me where a long low rail is formed by a row of cast concrete posts with a scaff pipe running through them. It's pretty easy to see that the posts were moulded in small dustbins.

 

[Norfolk Horn]

I'm sure you do appreciate that even if you got a professional standard mould you would need a vibro table of some description to obtain a professional finish, the correct size aggregate and the correct ratio mix to cement
Plus you will need some means of handling these bollards while they cure and in a fragile state and at installation as they are very heavy.
My advice would be let those who had the bright idea sort it out.
As previously posted nice green oak posts, maybe with a domed top and a rebate below would look very smart and surely would be more in keeping with a village green. If not you can buy off the shelf knee rail pre cut as seen on hundreds of developments up and down the country.

 

[Dunwaters]

Wouldn't a bit of drainpipe filled with concrete do the job? Don't know if the idea is any help.

David.

And a length of rebar up the middle.

 

[bluesako]

give the local council yard a call, to see if they have any surplus ones, i did years ago and they give me 50, and delivered them for free. bs

 

[kal]

4 or 6 inch cast iron drain pipe set in position and then filled with concrete and smoothed of at top.
The ones 4" at the side of my drivweay have been whacked by cars and lorrys many times and are still standing after 50 years.
An occasional lick of paint and still looking good.